server.ts

import 'zone.js/dist/zone-node';
import 'reflect-metadata';
import * as cookieParser from 'cookie-parser';

import { APP_BASE_HREF } from '@angular/common';
import { ngExpressEngine } from '@nguniversal/express-engine';
import { REQUEST, RESPONSE } from '@nguniversal/express-engine/tokens';
import * as express from 'express';
import { join } from 'path';
import { existsSync } from 'fs';
import 'localstorage-polyfill';
import { AppServerModule } from './src/main.server';
import { environment } from './src/environments/environment';

const fs = require('fs');
const path = require('path');
const domino = require('domino');
const distFolder = join(process.cwd(), 'dist/angularssr/browser');
const indexHtml = existsSync(join(distFolder, 'index.original.html')) ? 'index.original.html' : 'index.html';
const template = fs.readFileSync(path.join(distFolder, indexHtml)).toString();
const window = domino.createWindow(template);
global['window'] = window;
global['window'].Date = Date;
window.scrollTo = () => {};

Object.defineProperty(window.document.body.style, 'transform', {
  value: () => {
    return {
      enumerable: true,
      configurable: true
    };
  }
});
global['document'] = window.document;
global['localStorage'] = localStorage;
global['CSS'] = null;
global['XMLHttpRequest'] = require('xmlhttprequest').XMLHttpRequest;
global['Prism'] = null;
global['navigator'] = window.navigator;

// The Express app is exported so that it can be used by serverless Functions.
export function app() {
  const server = express();
  const distFolder = join(process.cwd(), 'dist/angularssr/browser');
  const indexHtml = existsSync(join(distFolder, 'index.original.html')) ? 'index.original.html' : 'index';
  server.use(cookieParser());

  // Our Universal express-engine (found @ https://github.com/angular/universal/tree/master/modules/express-engine)
  server.engine('html', ngExpressEngine({
    bootstrap: AppServerModule,
  }));

  server.set('view engine', 'html');
  server.set('views', distFolder);

  // Example Express Rest API endpoints
  // app.get('/api/**', (req, res) => { });
  // Serve static files from /browser
  server.get('*.*', express.static(distFolder, {
    maxAge: '1y'
  }));

  // All regular routes use the Universal engine
  server.get('*', (req, res) => {
    res.render(indexHtml, { req, providers: [
      { provide: APP_BASE_HREF, useValue: req.baseUrl },
       // for http and cookies
       {
        provide: REQUEST,
        useValue: req,
      },
      {
        provide: RESPONSE,
        useValue: res,
      } 
    ] });
  });

  return server;
}

function run() {
  const port = environment.port;

  // Start up the Node server
  const server = app();
  server.listen(port, () => {
    console.log(`Node Express server listening on http://localhost:${port}`);
  });
}

// Webpack will replace 'require' with '__webpack_require__'
// '__non_webpack_require__' is a proxy to Node 'require'
// The below code is to ensure that the server is run only when not requiring the bundle.
declare const __non_webpack_require__: NodeRequire;
const mainModule = __non_webpack_require__.main;
if (mainModule && mainModule.filename === __filename) {
  run();
}

export * from './src/main.server';